SiUS372201EA
Protection Control
Part 4 Functions and Control
142
6.3 Discharge Pipe Protection Control
This discharge pipe protection control is used to protect the compressor internal temperature
against an error or transient increase of discharge pipe temperature.
Normal control
3-step down
9-step up
9-step down
3-step up
21-step down
After 30 seconds
After 20 seconds
After 20 seconds
After 30 seconds
A
(°C) >
X
(°C)
(
A
(°F) >
Y
(°F))
A
(°C) <
X
–10
(°C)
(
A
(°F) <
Y
–18
(°F))
A
(°C) >
X
+5
(°C)
(
A
(°F) >
Y
+9
(°F))
A
(°C) <
X
–5
(°C)
(
A
(°F) <
Y
–9
(°F))
A
(°C) >
X
+10
(°C)
(
A
(°F) >
Y
+18
(°F))
A
(°C) >
X
+15
(°C)
(
A
(°F) >
Y
+27
(°F))
A
(°C) >
X
(°C)
(
A
(°F) >
Y
(°F))
Compressor step: 1
After 20 seconds
HTdi > 135°C (275°F)
HTdi > 120°C (248°F)
continues for 10 minutes
Ti > 120°C (248°F)
continues for 5 seconds
Ti > 115°C (239°F)
continues for 10 minutes
OR
HTdi
: Value of compressor discharge pipe temperature (Tdi) compensated with outdoor air temperature
Ti
: Compressor body temperature
A
: Maximum of HTdi and Ti
X (°C)(Y (°F))
: 110°C (230°F) (constant)
Upper limit compressor step:
max (Max. Step)
Current
step
maintained
Discharge pipe temperature standby
(3 times within 100 minutes)
Abnormal stop
(
F3
is displayed)
Discharge pipe temperature standby
(2 times within 100 minutes)
After 30
seconds
Summary of Contents for REYQ-AATJA
Page 1: ...Service Manual Heat Recovery 60 Hz REYQ AATJA 208 230 V REYQ AAYDA 460 V SiUS372201EA...
Page 465: ...SiUS372201EA Wiring Diagrams Part 7 Appendix 458 BS6 8Q54TVJ 2D089122B...
Page 466: ...Wiring Diagrams SiUS372201EA 459 Part 7 Appendix BS10 12Q54TVJ 2D089121B...
Page 469: ...SiUS372201EA Wiring Diagrams Part 7 Appendix 462 BSF6 8Q54TVJ 2D123905A...
Page 472: ...Wiring Diagrams SiUS372201EA 465 Part 7 Appendix FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Page 476: ...Wiring Diagrams SiUS372201EA 469 Part 7 Appendix FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 477: ...SiUS372201EA Wiring Diagrams Part 7 Appendix 470 FXDQ07 09 12 18 24MVJU C 3D050501C...
Page 483: ...SiUS372201EA Wiring Diagrams Part 7 Appendix 476 FXHQ12 24 36MVJU 3D048116C...
Page 484: ...Wiring Diagrams SiUS372201EA 477 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...
Page 490: ...Wiring Diagrams SiUS372201EA 483 Part 7 Appendix VAM1200GVJU 3D073270D...